Töss is a district in the Swiss city of Winterthur. It is district number 4. The district comprises the quarters Schlosstal, Dättnau, Eichliacker and Rossberg. It is named after the river Töss which flows through the district. In the Middle Ages, the village was renowned as the location of the Töss nunnery, where Elizabeth of Hungary and Elsbeth Stagel were the nuns. The latter described the lives of its nuns in some detail. Töss was formerly a municipality of its own, but was incorporated into Winterthur in 1922.

Notable residents